It's not only about obvious cheating like slowing down the game. It might be easier to do certain things with different hardware setups. An illustrating examp

It's not only about obvious cheating like slowing down the game. It might be easier to do certain things with different hardware setups. An illustrating example: If you play quake 3 at 125 fps you can jump farther than you could if the game was running at 60fps.